Chief among the tweaks are new weapon loot drops, new achievements and associated rewards, a challenge function, and an inventory overhaul that sees most items shared across your account rather than specific to certain characters. The challenge mechanic enables pre-made 4-man teams to /challenge one another, and can be used for everything from impromptu shootouts to player-run tourneys and brackets.
Hi-Rez has made the full patch notes available for your perusal, so head over to the official website and check them out.
